Similarity-Based Models

  • Frederick E. Petry
Part of the International Series in Intelligent Technologies book series (ISIT, volume 5)


In previous chapters we have introduced the basic concepts of the relational database model and fuzzy set theory. The relational model has been the dominant database model for a considerable period of time and so it was naturally used by researchers to introduce fuzzy set theory into databases. Much of the work in the area has been in extending the basic model and query languages to permit the representation and retrieval of imprecise data. A number of related issues such as functional dependencies, security, implementation considerations and others have also been investigated. These topics will be described in this chapter and the next in the context of relational databases.


Fuzzy Number Query Language Relational Algebra Proximity Relation Semantic Rule 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Kluwer Academic Publishers 1996

Authors and Affiliations

  • Frederick E. Petry
    • 1
  1. 1.Tulane UniversityUSA

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